Mercedes will reveal a facelifted C-class saloon at next year’s Detroit motor show.

There will be subtle visual upgrades, including new headlamps, a more contoured bonnet and reprofiled bumpers.

See the latest pictures of the Mercedes C-class facelift

The saloon will get reworked versions of today’s four-cylinder petrol and diesel engines, and an optional seven-speed automatic gearbox in place of the current five-speed unit.

The 3.5-litre V6 in the C350 CGI will make way for a newer unit of the same capacity from Mercedes’ MoVe generation of engines.

Read more on the new Mercedes C-class coupe, including the C63 AMG version

See all the latest Mercedes C-class reviews, news and video